JP5862224B2 - Conveyor device - Google Patents

Description

  The present invention relates to a conveyor device capable of forming a continuous work floor on which an operator rides and performs a part assembling operation.

Carriage cart as a conveyor device that can form a continuous work floor (working plane) on which an operator rides and carries parts assembling work while carrying a transport cart carrying an object to be transported along the transport path In a linear work line that forms a continuous work floor with the ends of the two abutting each other, the front and rear transport carts are connected by a cart connecting device and transported at a constant speed by a boost drive means. There is a return line that returns the transporting carriage to the entrance of the work line and disconnects the transporting carriage that has come out of the work line and transports it at high speed by high-speed driving means (see, for example, Patent Document 1). ).
In addition, the front and rear portions of the transporting carriage (movable body) facing each other are connected to each other through a connecting device so as to be relatively rotatable in the lateral direction, and the transporting carriage group (movable body group) and the connecting device group form a train shape. The endless continuous body is formed, and this endless continuous body is driven by a feeding device (see, for example, Patent Document 2).
In addition, the transport carriage (pallet) is divided into a plurality of parts in the transport direction, and the divided transport carriages (split pallets) are connected to each other so as to be rotatable in a horizontal plane. There is a system in which the system is a free flow system in which the succeeding transport cart is pushed when the succeeding transport cart hits the transport cart traveling forward (see, for example, Patent Document 3).

JP 2006-117079 A Japanese Patent Application Laid-Open No. 08-282481 JP 2007-112605 A

Since the conveyor apparatus like patent document 1 is the structure which cancels | releases connection of the conveyance trolley | bogie and conveys at high speed by a high-speed drive means except a linear work line (return line), it is other than a linear work line Therefore, it is not possible to form a continuous work floor (work plane) on which an operator rides and performs parts assembling work, so work efficiency and space efficiency deteriorate.
Moreover, since the conveyor apparatus like patent document 2 is the structure which drives the whole train-like endless continuous body with a feeder, it is endless continuous when unloading a to-be-conveyed object with respect to the conveyance trolley | bogie. Since it is necessary to stop the whole body, work efficiency worsens.
Furthermore, since the conveyor apparatus like patent document 3 is a structure of the free flow system which backs up with the subsequent conveyance trolley | bogies, without connecting the front and rear conveyance trolleys, a clearance gap arises between the front and rear conveyance trolleys. In some cases, it is difficult to reliably form a continuous work floor (work plane) on which an operator rides.

  Therefore, in view of the above-described situation, the present invention intends to solve the problem that a continuous work floor (work plane) on which a worker gets on a curved path and performs a part assembling work can be formed. The object of the present invention is to provide a conveyor device that can reliably form a continuous work floor (work plane) on which an operator rides without having to stop the work line when loading and unloading objects.

In order to solve the above problems, the conveyor device according to the present invention forms a continuous work floor on which an operator rides a part assembling work while transporting a transport carriage carrying a transported object along a transport path. A conveyor device, wherein each of the transport carriages is positioned on the front or rear side in the transport direction of one or a plurality of carriages and relative to the carriage and about a vertical axis. It is constituted by a connecting pedestal body that is connected to each other, and the upper surface of the pedestal body and the upper surface of the connecting pedestal body are substantially the same horizontal plane, and provided with a connecting means for connecting between the transfer trolleys positioned before and after the transfer direction, A plurality of transfer carriages are connected by the connecting means and arranged as a transfer carriage group on a transfer path including a curved path, and while the transfer carriage group is transferred at a constant speed, the upper surfaces of the carriage and the connecting carriage bodies and the work floor Wherein with constituting parts assembly work line to carry out the work, return to connected to a rear end of the transport carriage group wherein conveying the conveyance carriage at a high speed to separate the transport direction front end of the transport carriage group Te the provided lines, on the return line, which performs loading operation of the wholesale operations and new objects to be conveyed in the object to be conveyed to said conveying carriage of a single separate from the transporting carriage group, the transporting carriage A driven surface that is continuous in the transport direction, and a friction roller of a friction roller type driving device is pressed against the driven surface to drive the transport cart, and the front and rear ends in the transport direction of each of the transport carts The one end is formed into an arcuate convex portion in plan view and the other end is formed into an arcuate concave portion in plan view, and the curvature radii of the arcuate convex portion and the arcuate concave portion are made substantially the same. Said arc-shaped convex portion and the arc-shaped recess between the transporting carriage is coupled by said coupling means so as to be relatively rotatable in the horizontal direction with respect to the approximate center point of the radius of curvature of the circular arc Features.

According to such a configuration, each of the transport carts is connected to the single or multiple cart bodies and the front or rear side in the transport direction of the cart bodies so as to be rotatable relative to the cart bodies around a vertical axis. Since the upper surface of the carriage body and the upper surface of the linkage carriage body are substantially on the same horizontal plane, the carriage body of the carriage carriage group is formed by connecting a plurality of carriage trucks with coupling means. In addition, the upper surface of the connecting pedestal vehicle body can be a continuous work floor on which an operator rides a part assembling work, and such a transportation carriage group can be arranged on a conveyance path including a curved path. .
Therefore, since the parts assembling work can be performed also in the curved path, the work efficiency and the space efficiency can be improved.
In addition, since the unloading work of the transported object is performed on the return line for the single transporting carriage separated from the transporting carriage group, the unloading work on the work line is performed during the unloading work of the transported object. Since it is not necessary to stop the transport carriage group and the work can be performed while transporting the transport carriage group at a constant speed on the work line, the work efficiency is further increased.
In addition, since the front and rear transport carts are connected by the connecting means in the transport line group on the work line, there is no gap between the front and rear transport carts even if there is a change in transport speed or the like. Therefore, it is possible to reliably form a continuous work floor (work plane) on which an operator rides.

Here, the guide rail that guides the transport carriage along the transport path is a guide piece on the left and right in the transport direction that guides a horizontal roller located below the center in the width direction of the transport carriage, and the connecting means A hook-like engagement portion formed on a swinging piece attached to a free end portion of a connecting rod directed from one side to the other of the transporting cart located in the front and back in the transporting direction so as to be horizontally swingable. It is preferable that the swing piece is located between the left and right guide pieces in at least the curved path of the work line.
According to such a configuration, since the swing piece of the connecting means is located between the left and right guide pieces at least in the curved path, the horizontal swing of the swing piece is restricted, so that the connecting rod vibrates. Even when an impact is applied, the engagement between the hook-shaped engagement portion of the swinging piece and the support shaft of the horizontal roller is not disengaged. Connection can be performed stably and reliably.
In addition, the connecting means has a simple configuration in which the hook-shaped engaging portion formed on the swinging piece attached to the free end portion of the connecting rod so as to be horizontally swingable is engaged with the support shaft of the horizontal roller. The manufacturing cost can be reduced.

Further, the guide rail that guides the transport carriage along the transport path is a guide piece on the left and right in the transport direction that guides a horizontal roller located below the center in the width direction of the transport carriage, and the connecting means is A connecting pin provided on one side of the transporting carriage located in the front and rear of the transporting direction and slidable in the vertical direction is inserted into an engagement hole formed on the other side of the transporting carriage, and connected by the connecting means. The position is set directly above one of the horizontal rollers of the transfer carriage, the position of the other horizontal roller of the transfer carriage close to the connection position is shifted upward, and the position is shifted upward in the curved path. It is preferable to cut out the upper part of the guide piece inside the guide rail so as not to interfere with the horizontal roller.
According to such a configuration, the front and rear transport carts are connected stably and reliably with the connecting pin slidable in the vertical direction of the connecting means inserted into the engagement hole, and the front and rear transport carts are Since it is easy to increase the strength of the connecting part because it is connected with the connecting pins of the book, the number of transfer carriages that make up the transfer carriage group is particularly large, and it is driven to the transfer carriage at the front end. In the case of pulling and driving the transport carriage group by applying force, it is easy to secure the strength of the connecting portion between the front end transport carriage and the subsequent transport carriage, which requires very high strength.
In addition, since the connecting position of the connecting pin and the engagement hole is directly above one horizontal roller of the front and rear transport carts, the front and rear transport carts rotate relatively around the axis of the horizontal roller. Therefore, it is possible to reduce the gap of the part that rotates relatively in the horizontal direction on the work floor (work plane) and to drive the side surface of the transport carriage with the friction roller type driving device as the driven surface. The connection of the driven surfaces can be improved.
In addition, the horizontal roller near the horizontal roller just below the connection position is shifted upward, and the upper part of the guide piece on the inner side of the guide rail is cut out in the curved path. While the horizontal roller just below the position is guided by the guide rail, the horizontal roller shifted to the upper side and the guide rail are prevented from interfering with each other, so that the transport carriage group can be stably and reliably transported.

  As described above, according to the conveyor apparatus according to the present invention, since the transportation carriage group can be arranged on the conveyance path including the curved path and the parts assembling work can be performed also on the curved path, the work efficiency is improved. And the space efficiency can be improved, and the unloading work of the object to be transported is performed on the return line with respect to the single transport cart separated from the transport cart group. Since the work can be performed while transporting at a constant speed, the work efficiency is further improved, and the transport carriage group in the work line is connected to the front and rear transport carriages by the connecting means, so the fluctuation of the transport speed, etc. Even if there is a gap, there is no gap between the front and rear transport carriages, so that it is possible to reliably form a continuous work floor (work plane) on which an operator rides.

It is a schematic layout figure of the conveyor apparatus which concerns on embodiment of this invention. FIG. 3 is a plan view of the transfer carriage according to the first embodiment. It is a front view of the conveyance trolley which abbreviate | omits and shows a guide rail. It is the vertical front view which looked at the trolley | bogie for conveyance from the front. It is a cross-sectional top view which shows the state around the connection means in a curved path. It is a cross-sectional top view which shows the structure of a connection means. It is a longitudinal front view similarly. 6 is a plan view of a transport carriage according to Embodiment 2. FIG. It is a front view of the conveyance trolley which abbreviate | omits and shows a guide rail. (A) is the vertical front view which looked at the conveyance trolley from the front by the linear path | route, (b) is the principal part expansion vertical front view which looked at the trolley | bogie from the front by the curved path. It is a cross-sectional top view which shows the state around the connection means in a curved path. It is a cross-sectional top view which shows the structure of a connection means. It is a longitudinal front view similarly.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste.
In the present specification, the transport direction (see arrow F in the figure) of the object to be transported is the front, the opposite side is the rear, the left and right are the front, and the view seen from the left is the front. The figure.

As shown in the schematic layout diagram of FIG. 1, the conveyor apparatus according to the embodiment of the present invention includes a friction roller type driving device that includes a non-self-propelled transport carriage 1, 1. Are transported along an endless transport path composed of linear paths S1, S2 and curved paths C1, C2 by a feeding device T1, T2, T3. 8)), the transport carriage group A formed by connecting the front and rear transport carriages 1 and 1 is arranged on the transport path including the curved path C1, and the operator gets on the parts assembly work. A work line L1 is formed so as to form a continuous work floor (work plane) B (see the front views of FIGS. 3 and 9) to be performed.
In addition, the transfer carriage 1 at the front end of the transfer carriage group A is separated from the transfer carriage group A, and the separated transfer carriage 1 is transferred at high speed and connected to the rear end of the transfer carriage group A. The line L2 is configured by a part of the linear path S2, a curved path C2, and a part of the linear path S1.
In addition, on the return line L2, a loading station ST1 and a wholesale station ST2 for loading and unloading the articles W to be conveyed are provided. In the wholesale station ST2, a single conveyance carriage 1 separated from the conveyance carriage group A is provided. The work to unload the transported object W is performed, and at the loading station ST1, the work of loading the new transported object W onto the single transport cart 1 that has become empty is performed.

Here, the conveyance carriage group A is conveyed by a constant-speed conveyance feeder T1. That is, while the reaction force is received by the backup rollers 17B of the constant-speed conveyance feeder T1, the friction rollers 17A of the constant-speed conveyance feeder T1 are moved to the side surface of the conveyance carriage 1 at the front end (FIGS. 2 and 8). .. Are driven in contact with the driven surface H, and the subsequent transport carts 1, 1,... Are pulled, and the transport cart group A is integrated at a constant speed. It is conveyed by.
Further, the friction roller 17A of the brake feeding device T3, which is slightly lower in speed than the constant-speed conveying feeder T1, is brought into pressure contact with the side surface of the conveying cart 1 at the rear end of the conveying cart group A, whereby the conveying cart. Since the tensile force acts on the entire group A, there is an effect that the transport carts 1 in the cart group A do not rattle.
Further, the conveyance of the single conveyance carriage 1 separated from the conveyance carriage group A as described above is performed by pressing the friction roller 17A against the side surface of the conveyance carriage 1 by the high-speed conveyance feeder T2. At the loading station ST1 and the wholesale station ST2, the unloading work of the transported object W is performed with the transport carriage 1 stopped at these predetermined positions.
Furthermore, when the transport carriage 1 on which the new work W has been loaded at the loading station ST1 is transported at a high speed by the high-speed transport feeder T2 and connected to the rear end of the transport carriage group A. Shifts the high-speed conveyance feeder T2 to a low-speed operation, thereby connecting the conveyance carriage 1 conveyed at high speed to the rear end of the conveyance carriage group A by connection means C described later.

Embodiment 1 FIG.
As shown in the plan view of FIG. 2 and the front view of FIG. 3, the carriage 1 according to the first embodiment of the present invention includes a front and rear first vehicle body 1A, a second vehicle body 1B, and vehicle bodies 1A and 1B. The first connecting base body 2A and the second connecting base body 2B are connected to the base bodies 1A and 1B so as to be rotatable relative to the base bodies 1A and 1B. The upper surface and the upper surfaces of the connecting base vehicle bodies 2A and 2B are substantially the same horizontal plane.
In the first vehicle body 1A and the second vehicle body 1B, a frame body is fixed to the lower surface of a plate member having a generally oval shape in plan view with arcs in the front and rear, and traveling wheels 6A, 6A,. It is done.
In addition, the first connecting base body 2A and the second connecting base body 2B have a frame fixed to the lower surface of a substantially drum-shaped plate member in plan view with front and rear arc-shaped concave portions, and traveling wheels 6B and 6B on the left and right. Is attached to the lower surface of the plate member on the first connecting base vehicle body 2A on the front side, and the second connecting base vehicle body 2B on the rear side is attached to the lower surface of the plate member. A long connecting rod 4 is fixed in the front-rear direction.

The front end of the connecting rod 3 of the first connecting vehicle body 2A is the vertical center of the first vehicle body 1A, and the rear end of the connecting rod 3 is the vertical center of the second vehicle body 1B. The front end of the connecting rod 4 of the second connecting vehicle body 2B is connected so as to be relatively rotatable around the center of the rear width direction of the second vehicle body 1B and the vertical axis.
In addition, a horizontal roller 5A is attached below the center of the front width direction of the first vehicle body 1A, and horizontal rollers 5B and 5C are attached below the front and rear ends of the connecting rod 3 of the first connection vehicle body 2A. Horizontal rollers 5D and 5E are respectively attached below the front and rear end portions of the connecting rod 4 of the second connecting base vehicle body 2B.
Further, a swing piece 8 is attached to the rear end portion of the connecting rod 4 of the second connecting base vehicle body 2B. The swing piece 8 and the horizontal roller 5A below the center in the front width direction of the first base car body 1A are supported. The shaft E constitutes a connecting means C that connects the front and rear transport carts 1, 1.

  As shown in the front view of FIG. 3 and the longitudinal front view seen from the front of FIG. 4, the left and right traveling rails R, R and the guide rail G are fixed by yokes Y, Y,. The rolling wheels 6A, 6A,... And 6B, 6B,... Roll on the traveling rails R, R, and the horizontal rollers 5A, 5B, 5C, 5D, 5E are moved by the left and right guide pieces 7A, 7B of the guide rail G. Since the guided vehicle 1 is guided, the transporting carriages 1, 1,... (The transporting carriage group A) in which the transported object W is mounted on the transported object support base D above the first car body 1A are along the transport path. Moving.

Next, details of the configuration of the connecting means C will be described.
As shown in the plan view of FIG. 2, the cross-sectional plan views of FIGS. 5 and 6, and the longitudinal front view of FIG. 7, the rear end portion of the connecting rod 4 of the second connecting base body 2B has a vertical shaft (horizontal roller 5E). Oscillating piece 8 is attached to the oscillating piece 8, and a hook-like engaging portion 8 A is formed on the oscillating piece 8. The oscillating piece 8 is elastically biased by a torsion coil spring 9. Therefore, the state where the stopper piece 8D is stopped by the stopper 10 and the swing piece 8 extends rearward is maintained.
Therefore, for example, when the carriage 1 approaches from the rear with respect to the carriage 1 shown in FIG. 2, the support shaft E of the horizontal roller 5A comes into contact with the inclined surface of the swing piece 8 and resists the elastic biasing force. Since the swing piece 8 is swung and the support shaft E is engaged with the hook-like engagement portion 8A of the swing piece 8, the front and rear transport carriages 1, 1 are connected to each other as shown in FIGS. Become.
Further, such connection of the connecting means C can be released by operating the operated roller 8C at the tip of the operated piece 8B shown in FIG. 6 with a cam rail or the like (not shown) and swinging like a two-dot chain line. it can.

The connection of the connection means C may be performed on the upstream side of the work line L1 in FIG. 1 (the rear end of the transport carriage group A), and the connection of the connection means C is released on the downstream side of the work line L1 in FIG. For example, in the work line L1 (may be a part of only the curved path C1 instead of the entire path of the work line L1), it may be performed at the front end of the transport carriage group A. FIG. The height of the left and right guide pieces 7A and 7B can be increased so that the swing piece 8 is positioned between the left and right guide pieces 7A and 7B of the guide rail G as shown in FIG.
In this way, since the horizontal swing of the swing piece 8 is restricted, the hook-like engagement portion 8A of the swing piece 8 and the horizontal roller are applied even when vibration or impact is applied to the connecting rod 4. Since the engagement with the support shaft E of 5A is not disengaged, the connection by the connecting means C between the transport carriages 1 and 1 positioned in the front and rear can be performed stably and reliably.
Further, at the place where the connection of the connecting means C is released, the height of the guide piece 7A may be lowered so that the swing piece 8 can be swung as shown by the two-dot chain line in FIG.
According to the structure of the connecting means C as described above, the hook-like engaging portion 8A formed on the swinging piece 8 attached to the free end portion of the connecting rod 4 so as to be horizontally swingable is used as the support shaft of the horizontal roller 5A. Since it is a simple structure which engages with E, manufacturing cost can be reduced.

Embodiment 2. FIG.
As shown in the plan view of FIG. 8, the front view of FIG. 9 and the longitudinal front view seen from the front of FIG. 10 (a), the basic configuration of the transport carriage 1 according to the second embodiment of the present invention is the embodiment. 1 are the same as those in the first embodiment, or parts corresponding to those in the first embodiment are denoted by the same reference numerals as those in FIGS. The main part of the second embodiment that differs from the first embodiment in the configuration is the connecting means C, and therefore the details of the configuration of the connecting means C will be described below.

As shown in the plan view of FIG. 8, the cross-sectional plan views of FIGS. 11 and 12, and the longitudinal front view of FIG. 13, above the horizontal roller 5A below the center in the front width direction of the first vehicle body 1A of the transport carriage 1 A connecting pin 11 that is guided by the guide hole 11A and is slidable in the vertical direction is provided (above the axis of the support shaft of the horizontal roller 5A). The connecting pin 11 is connected to the second connecting base body 2B. In order to engage with the vertical engagement hole 12 formed at the rear end of the connecting rod 4, the connecting position of the front and rear transport carts 1, 1 by the connecting means C is the same as that of the rear transport cart 1. It is directly above the horizontal roller 5A below the center in the front width direction of the single vehicle body 1A.
Further, the front end portion is fixed to the frame body of the first vehicle body 1A, and the rear end portion of the first link 13A that extends substantially in the front-rear direction and swings in the up-down direction has the second link 13B extending in the substantially up-down direction. The lower end is connected, and the rear end of the third link 13C that extends in the front-rear direction and is supported by the horizontal support shaft 14 in the left-right direction and swings in the up-down direction at the upper end of the second link 13B. Are connected, and the front end of the third link 13 </ b> C is connected to the upper end of the connecting pin 11.

Further, one end portion of the tension coil spring 15 is hooked between the front end portion of the third link 13C and the horizontal support shaft 14, and the other end portion of the tension coil spring 15 is fixed to the frame body of the first vehicle body 1A. Therefore, the state in which the connecting pin 11 is engaged with the engaging hole 12 by the elastic biasing force of the tension coil spring 15 is maintained, and the operated roller 16 attached to the connecting shaft of the first link 13A and the second link 13B is moved. By operating, the connecting pin 11 can be moved up and down along the guide hole 11A.
Therefore, for example, when the transportation carriage 1 approaches from the rear side with respect to the transportation carriage 1 of FIG. 8, the operated roller 16 is pushed down by a cam rail or the like (not shown), and the tension coil as shown by a two-dot chain line in FIG. The operation of the operated roller 16 by a cam rail or the like is performed with the connecting pin 11 raised against the elastic biasing force of the spring 15 and the vertical position of the connecting pin 11 and the guide hole 11A being aligned. By releasing, the connecting pin 11 is lowered by the elastic biasing force of the tension coil spring 15 and engaged with the engagement hole 12, that is, the front and rear transport carriages 1, 1 are connected as shown in FIGS. It becomes a state.
Further, such connection of the connecting means C is released by operating the operated piece 16 shown in FIGS. 12 and 13 as described above and raising the connecting pin 11 as shown by a two-dot chain line in FIG. be able to.

  Here, the position of the horizontal roller 5E on the front side of the vertical engagement hole 12 formed in the rear end portion of the connecting rod 4 of the second connecting base vehicle body 2B (the horizontal roller 5E close to the connecting position by the connecting means C). 9 and FIG. 13 is shifted upward, and in the curved path C1, the upper part of the guide piece 7A on the inner side of the guide rail G is viewed from the front of FIG. Since it is notched as shown in the front view, the horizontal roller 5A just below the connection position of the front and rear transport carriages 1 and 1 is guided by the guide rail G in the curved path C1 shown in FIG. The horizontal roller 5E that has been shifted to the guide rail G and the guide rail G are prevented from interfering with each other, so that the transport carriage group A can be transported stably and reliably.

According to the configuration of the connecting means C as described above, the front and rear transport carriages 1 and 1 are connected stably and reliably with the connecting pin 11 slidable in the vertical direction of the connecting means C inserted into the engagement hole 12. In addition, since the front and rear transport carts 1 and 1 are connected by a single connecting pin 11, it is easy to increase the strength of the connecting portion. The number of transport carts 1, 1,... Is large, and in the case of driving the transport cart group A by applying a driving force to the transport cart 1 at the front end by the constant speed transport feeder T 1, it is very large. It is easy to ensure the strength of the connecting portion between the front-end transfer carriage 1 and the subsequent transfer carriage 1 that require strength.
Since the connecting position of the connecting pin 11 and the engagement hole 12 is directly above one horizontal roller 5A of the front and rear transport carts 1, 1, the front and rear transport carts around the axis of the horizontal roller 5A. 1 and 1 relatively rotate, so that the gap between the relatively rotating portions in the horizontal direction on the work floor (work plane) can be reduced, and the side surfaces of the transport carriages 1, 1,. It is possible to improve the connection of the driven surfaces H, H,... When driven by the friction roller type driving device as the driven surfaces H, H,.

In the above description, as shown in FIGS. 2 and 8, the transport carriage 1 includes two carriage bodies (first carriage 1A and second carriage 1B) and two connection carriage bodies (first Although the case where it is configured by the connecting base body 2A and the second connecting base body 2B) is shown, the transporting carriage 1 may be configured by one base body and a connecting base body, and three or more base bodies and You may comprise a connection stand vehicle body.
Further, since the connecting means C provided in the front and rear transport carts 1 and 1 are relative for connecting the front and rear transport carts 1 and 1, the connecting means C provided in the front portion of the transport cart 1 While the configuration and the connecting means provided at the rear part can be exchanged, for example, the transport direction of the transport carriage 1 shown in FIGS. 2 and 8 may be reversed.

According to the configuration of the conveyor apparatus configured as described above, each of the transport carriages 1 is positioned on one or a plurality of carriage bodies (for example, the carriage bodies 1A and 1B) and on the front side or the rear side in the conveyance direction of the carriage bodies. And a connecting base body (for example, connecting base bodies 2A and 2B) connected to the base body so as to be rotatable about a vertical axis, and the upper surface of the base body and the upper surface of the connecting base body are substantially the same. Since it is a horizontal plane, a plurality of transport carts 1 are connected by a connecting means C to form a transport cart group A, and a continuous operation in which an operator rides parts on the top surface of the cart body and the connecting cart body is performed. The floor (working plane) B can be used, and such a transport carriage group A can be arranged on a transport path including a curved path.
Therefore, since the parts assembling work can be performed also in the curved path, the work efficiency and the space efficiency can be improved.
In addition, since the unloading work of the transported object W is performed on the return line L2 with respect to the single transporting carriage 1 separated from the transporting carriage group A, the work is performed during the unloading work of the transported object W. There is no need to stop the transport carriage group A on the line L1, and the work can be performed while transporting the transport carriage group A at a constant speed on the work line L1, so that the work efficiency is further increased.
Further, since the front and rear transport carts 1 and 1 are connected by the connecting means C in the work line L1, the gap between the front and rear transport carts is maintained even if the transport speed varies. Since it does not occur, a continuous work floor (work plane) B on which an operator rides can be reliably formed.

A Conveying carriage group B Continuous work floor C Connecting means C1, C2 Curved path D Conveyed object support base E Horizontal roller support shaft F Conveyance direction FL Floor surface G Guide rail H Drive surface L1 Work line L2 Return line R traveling rails S1 and S2 straight path ST1 loading station ST2 wholesale station T1 constant-speed conveyance feeder T2 high-speed conveyance feeder T3 brake feeder Y yoke W conveyed object 1 conveyance carriage 1A first carriage 1B 2nd vehicle body 2A 1st connecting vehicle body 2B 2nd connecting vehicle body 3, 4 Connecting rods 5A, 5B, 5C, 5D, 5E Horizontal rollers 6A, 6B Traveling wheels 7A, 7B Guide piece 8 Oscillating piece 8A Hook-shaped engagement Joint portion 8B Operated piece 8C Operated roller 8D Stopping piece 9 Torsion coil spring 10 Stopper 11 Connection pin 11A Guide hole 12 Engagement hole 13A First link 13B 2 links 13C third link 14 to be operated horizontally support shaft 15 tension coil spring 16 roller 17A friction roller 17B backup roller

Claims (3)

A conveyor device capable of forming a continuous work floor on which an operator rides and performs component assembly work while transporting a transport carriage carrying a transported object along a transport path,
Each of the transfer trolleys is composed of one or a plurality of trolley bodies and a connecting trolley body that is positioned on the front side or the rear side of the trolley body in the transport direction and is connected to the trolley body so as to be rotatable about a vertical axis. The upper surface of the carriage body and the upper surface of the coupling carriage body are substantially on the same horizontal plane, and there is provided a connecting means for connecting between the carriage trucks located in the front and back in the conveying direction, and a plurality of the carriage carriages are connected by the connecting means. linked by placing the conveyance path including a curved path as the transport carriage group, the component sets the base body and the connection bar body of the upper surface while conveying the transport carriage group at a constant speed and with the working floor Forming a work line for performing the attaching work, separating the transport carriage at the front end in the transport direction of the transport carriage group and transporting it at high speed to provide a return line connected to the rear end of the transport carriage group, On this return line, before Is intended to perform the loading operation of the wholesale work and new objects to be conveyed of the carried object for itself the carrying carriage that is separate from the transport carriage group,
The transport carriage is provided with a driven surface continuous in the transport direction, and the transport carriage is driven by pressing the friction roller of a friction roller type driving device on the driven surface.
The front and rear end portions in the transport direction of each of the transport carriages are formed such that one end portion is an arcuate convex portion in plan view and the other end portion is an arcuate concave portion in plan view, and the arcuate convex portion and the arc shape The curvature radii of the recesses are made substantially the same so that the arcuate protrusions and the arcuate recesses between the front and rear carriages can be rotated relative to the approximate center point of the radius of curvature of the arc in the horizontal direction. A conveyor device characterized by being connected by the connecting means .
The guide rail that guides the transport carriage along the transport path is a guide piece on the left and right in the transport direction that guides a horizontal roller located below the center in the width direction of the transport carriage,
A hook-shaped engagement portion formed on a swinging piece attached to the free end portion of the connecting rod from the one of the transport carriages located in the front and rear in the transport direction to the other, so that the connection means can swing horizontally. It engages with a support shaft of the horizontal roller attached to the other of the transport carriage, and the swing piece is located between the left and right guide pieces in at least the curved path of the work line. The conveyor apparatus of Claim 1. The guide rail that guides the transport carriage along the transport path is a guide piece on the left and right in the transport direction that guides a horizontal roller located below the center in the width direction of the transport carriage,
The connecting means inserts a connecting pin slidable in the vertical direction provided on one side of the transport carriage located in the front and rear in the transport direction into an engagement hole formed on the other side of the transport carriage, The connection position by the connection means is directly above one of the horizontal rollers of the transfer carriage, the position of the other horizontal roller of the transfer carriage close to the connection position is shifted upward, and in the curved path, The conveyor apparatus of Claim 1 which notches the upper part of the guide piece inside the said guide rail so that it may not interfere with the horizontal roller shifted to the said upper side.

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